Plumbing Engineer - Columns: July 2014
The Authoritative Source for Plumbing, Hydronics, Fire Protection and PVF
Plumbing Engineer - Columns: July 2014

Well-read and eagerly anticipated by all Plumbing Engineer readers, our columns are authored by experts in their respective fields. The columns on this page are updated each month, so check back often.


Sidewall Runoff
The concept of sidewall runoff is that wind driven rain can blow against the side of a building and increase the amount of storm water that falls on a lower roof below. Each of the two model codes addresses this subject differently. The IPC is quite brief on this subject and states as follows: ... >> More


Tunnel fire safety experts get sprinkler religion
A year ago, after submitting sprinkler system bid documents for the new medical center at Wossamotta University in Frostbite Falls, I was called upon by the hospital architect, Mr. Noitall, to defend my design. He demanded, “Why did you provide sprinklers protection in ... >> More


Closed-Loop Solar Glycol: The art of fill and purge
Hydronic heating systems must be filled with water to provide the heat transfer fluid (HTF) that makes them work. In the case of the closed-loop solar heating system, the HTF is typically a mixture of water and propylene glycol. The process of filling the plumbing system with the antifreeze, ... >> More


How standards and codes become law
In a democratic society, we rely on laws to regulate how we govern and maintain order. Americans have gathered to make laws since our colonial period and we continue to make laws to maintain a well-regulated society. Although specific procedures for creating laws ... >> More


Geothermal HVAC… Your roadmap to profits
Do you remember the first time you found a profit center that really rocked? For me, it was in the early 1990s. Egg Systems was a thriving HVAC service company. Property managers were calling on us more frequently, and we found it pesky that we were asked ... >> More


Manifolds for you and me
My first exposure to the word manifold had to do with cars, hot rods really. Names like Edelbrock, Weiand and Offenhauser were stickered across the rod’s windshields. Performance was the game back then. Allowing the engine to breathe easier or add additional ... >> More


Outcome-based approach to building energy
An outcome-based approach to building design and operation can provide a path to energy-efficient buildings. For several years, under the leadership of the National Institute of Building Sciences (NIBS), representatives from across the building industry, including code officials, ... >> More


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